Is the unit enabled?
Double click on device from db Devices tab and check or uncheck Unit Enabled.
Save after changes.
Re-enable and save again.
Check to see if device is online in System Status.
Is the unit communicating?
Try to ping Zero-U from machine with Server installed (the IP is shown on db Devices tab).
Verify ports TCP 1001, UDP 16388 are open for communication.
Are the inputs connected?
Verify Door 1 port has connection.
Zero-U will not connect without Door 1 connection.
Verify LED lights
Verify LEDs on Zero-U are green, orange, green from left to right.
Verify encryption key has been applied
Apply encryption key from DAS-SQL.
If it fails, the key has already been applied.
**Do not change encryption key unless original key is recorded as it cannot be changed on the device.**